Finding the Third Proportional to 8,742.75 and 12,699.75
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Solution
The third proportional to 8,742.75 and 12,699.75 is: 18,447.70
Step by Step Solution
- Step 1: Write the proportion equation
8,742.75 : 12,699.75 = 12,699.75 : x - Step 2: Convert to fraction form
8,742.75/12,699.75 = 12,699.75/x - Step 3: Cross multiply
8,742.75x = 12,699.75 × 12,699.75 - Step 4: Simplify right side
8,742.75x = 161,283,650.06 - Step 5: Solve for x
x = 161,283,650.06/8,742.75 - Step 6: Final answer
x = 18,447.70
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Why These Related Problems?
These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.